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Unified Diff: third_party/WebKit/LayoutTests/intersection-observer/multiple-thresholds.html

Issue 1806133002: IntersectionObserver: use an idle callback to send notifications. (Closed) Base URL: https://chromium.googlesource.com/chromium/src@master
Patch Set: rebase Created 4 years, 8 months ago
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Index: third_party/WebKit/LayoutTests/intersection-observer/multiple-thresholds.html
diff --git a/third_party/WebKit/LayoutTests/intersection-observer/multiple-thresholds.html b/third_party/WebKit/LayoutTests/intersection-observer/multiple-thresholds.html
index 94db094639b73839318431a12975328245beefe0..cee4e942f68ad76fb41adaa1878b6a8e60b2aa18 100644
--- a/third_party/WebKit/LayoutTests/intersection-observer/multiple-thresholds.html
+++ b/third_party/WebKit/LayoutTests/intersection-observer/multiple-thresholds.html
@@ -6,194 +6,202 @@
<div style="width:100%; height:700px;"></div>
<script>
- description("Intersection observer test with multiple thresholds.");
- var target = document.getElementById("target");
- var entries = [];
+description("Intersection observer test with multiple thresholds.");
+var target = document.getElementById("target");
+var entries = [];
+var observer = new IntersectionObserver(
+ changes => { entries = entries.concat(changes) },
+ { threshold: [0, 0.25, 0.5, 0.75, 1] }
+);
- observer_callback = function(changes) {
- for (var i in changes)
- entries.push(changes[i]);
- };
- var observer = new IntersectionObserver(observer_callback, {
- threshold: [0, 0.25, 0.5, 0.75, 1]
- });
+onload = function() {
observer.observe(target);
+ entries = entries.concat(observer.takeRecords());
+ shouldBeEqualToNumber("entries.length", 0);
+ // See README for explanation of double RAF.
+ requestAnimationFrame(() => { requestAnimationFrame(step0) });
+}
- function step0() {
- setTimeout(function() {
- shouldBeEqualToNumber("entries.length", 0);
- document.scrollingElement.scrollTop = 120;
- requestAnimationFrame(step1);
- });
- }
+function step0() {
+ entries = entries.concat(observer.takeRecords());
+ shouldBeEqualToNumber("entries.length", 0);
+ document.scrollingElement.scrollTop = 120;
+ requestAnimationFrame(step1);
+}
- function step1() {
- setTimeout(function() {
- shouldBeEqualToNumber("entries.length", 1);
- shouldBeEqualToNumber("entries[0].boundingClientRect.left", 8);
- shouldBeEqualToNumber("entries[0].boundingClientRect.right", 108);
- shouldBeEqualToNumber("entries[0].boundingClientRect.top", 588);
- shouldBeEqualToNumber("entries[0].boundingClientRect.bottom", 688);
- shouldBeEqualToNumber("entries[0].intersectionRect.left", 8);
- shouldBeEqualToNumber("entries[0].intersectionRect.right", 108);
- shouldBeEqualToNumber("entries[0].intersectionRect.top", 588);
- shouldBeEqualToNumber("entries[0].intersectionRect.bottom", 600);
- shouldBeEqualToNumber("entries[0].rootBounds.left", 0);
- shouldBeEqualToNumber("entries[0].rootBounds.right", 785);
- shouldBeEqualToNumber("entries[0].rootBounds.top", 0);
- shouldBeEqualToNumber("entries[0].rootBounds.bottom", 600);
- shouldEvaluateToSameObject("entries[0].target", target);
- document.scrollingElement.scrollTop = 160;
- requestAnimationFrame(step2);
- });
+function step1() {
+ entries = entries.concat(observer.takeRecords());
+ shouldBeEqualToNumber("entries.length", 1);
+ if (entries.length > 0) {
+ shouldBeEqualToNumber("entries[0].boundingClientRect.left", 8);
+ shouldBeEqualToNumber("entries[0].boundingClientRect.right", 108);
+ shouldBeEqualToNumber("entries[0].boundingClientRect.top", 588);
+ shouldBeEqualToNumber("entries[0].boundingClientRect.bottom", 688);
+ shouldBeEqualToNumber("entries[0].intersectionRect.left", 8);
+ shouldBeEqualToNumber("entries[0].intersectionRect.right", 108);
+ shouldBeEqualToNumber("entries[0].intersectionRect.top", 588);
+ shouldBeEqualToNumber("entries[0].intersectionRect.bottom", 600);
+ shouldBeEqualToNumber("entries[0].rootBounds.left", 0);
+ shouldBeEqualToNumber("entries[0].rootBounds.right", 785);
+ shouldBeEqualToNumber("entries[0].rootBounds.top", 0);
+ shouldBeEqualToNumber("entries[0].rootBounds.bottom", 600);
+ shouldEvaluateToSameObject("entries[0].target", target);
}
+ document.scrollingElement.scrollTop = 160;
+ requestAnimationFrame(step2);
+}
- function step2() {
- setTimeout(function() {
- shouldBeEqualToNumber("entries.length", 2);
- shouldBeEqualToNumber("entries[1].boundingClientRect.left", 8);
- shouldBeEqualToNumber("entries[1].boundingClientRect.right", 108);
- shouldBeEqualToNumber("entries[1].boundingClientRect.top", 548);
- shouldBeEqualToNumber("entries[1].boundingClientRect.bottom", 648);
- shouldBeEqualToNumber("entries[1].intersectionRect.left", 8);
- shouldBeEqualToNumber("entries[1].intersectionRect.right", 108);
- shouldBeEqualToNumber("entries[1].intersectionRect.top", 548);
- shouldBeEqualToNumber("entries[1].intersectionRect.bottom", 600);
- shouldBeEqualToNumber("entries[1].rootBounds.left", 0);
- shouldBeEqualToNumber("entries[1].rootBounds.right", 785);
- shouldBeEqualToNumber("entries[1].rootBounds.top", 0);
- shouldBeEqualToNumber("entries[1].rootBounds.bottom", 600);
- shouldEvaluateToSameObject("entries[1].target", target);
- document.scrollingElement.scrollTop = 200;
- requestAnimationFrame(step3);
- });
+function step2() {
+ entries = entries.concat(observer.takeRecords());
+ shouldBeEqualToNumber("entries.length", 2);
+ if (entries.length > 1) {
+ shouldBeEqualToNumber("entries[1].boundingClientRect.left", 8);
+ shouldBeEqualToNumber("entries[1].boundingClientRect.right", 108);
+ shouldBeEqualToNumber("entries[1].boundingClientRect.top", 548);
+ shouldBeEqualToNumber("entries[1].boundingClientRect.bottom", 648);
+ shouldBeEqualToNumber("entries[1].intersectionRect.left", 8);
+ shouldBeEqualToNumber("entries[1].intersectionRect.right", 108);
+ shouldBeEqualToNumber("entries[1].intersectionRect.top", 548);
+ shouldBeEqualToNumber("entries[1].intersectionRect.bottom", 600);
+ shouldBeEqualToNumber("entries[1].rootBounds.left", 0);
+ shouldBeEqualToNumber("entries[1].rootBounds.right", 785);
+ shouldBeEqualToNumber("entries[1].rootBounds.top", 0);
+ shouldBeEqualToNumber("entries[1].rootBounds.bottom", 600);
+ shouldEvaluateToSameObject("entries[1].target", target);
}
+ document.scrollingElement.scrollTop = 200;
+ requestAnimationFrame(step3);
+}
- function step3() {
- setTimeout(function() {
- shouldBeEqualToNumber("entries.length", 3);
- shouldBeEqualToNumber("entries[2].boundingClientRect.left", 8);
- shouldBeEqualToNumber("entries[2].boundingClientRect.right", 108);
- shouldBeEqualToNumber("entries[2].boundingClientRect.top", 508);
- shouldBeEqualToNumber("entries[2].boundingClientRect.bottom", 608);
- shouldBeEqualToNumber("entries[2].intersectionRect.left", 8);
- shouldBeEqualToNumber("entries[2].intersectionRect.right", 108);
- shouldBeEqualToNumber("entries[2].intersectionRect.top", 508);
- shouldBeEqualToNumber("entries[2].intersectionRect.bottom", 600);
- shouldBeEqualToNumber("entries[2].rootBounds.left", 0);
- shouldBeEqualToNumber("entries[2].rootBounds.right", 785);
- shouldBeEqualToNumber("entries[2].rootBounds.top", 0);
- shouldBeEqualToNumber("entries[2].rootBounds.bottom", 600);
- shouldEvaluateToSameObject("entries[2].target", target);
- document.scrollingElement.scrollTop = 240;
- requestAnimationFrame(step4);
- });
+function step3() {
+ entries = entries.concat(observer.takeRecords());
+ shouldBeEqualToNumber("entries.length", 3);
+ if (entries.length > 2) {
+ shouldBeEqualToNumber("entries[2].boundingClientRect.left", 8);
+ shouldBeEqualToNumber("entries[2].boundingClientRect.right", 108);
+ shouldBeEqualToNumber("entries[2].boundingClientRect.top", 508);
+ shouldBeEqualToNumber("entries[2].boundingClientRect.bottom", 608);
+ shouldBeEqualToNumber("entries[2].intersectionRect.left", 8);
+ shouldBeEqualToNumber("entries[2].intersectionRect.right", 108);
+ shouldBeEqualToNumber("entries[2].intersectionRect.top", 508);
+ shouldBeEqualToNumber("entries[2].intersectionRect.bottom", 600);
+ shouldBeEqualToNumber("entries[2].rootBounds.left", 0);
+ shouldBeEqualToNumber("entries[2].rootBounds.right", 785);
+ shouldBeEqualToNumber("entries[2].rootBounds.top", 0);
+ shouldBeEqualToNumber("entries[2].rootBounds.bottom", 600);
+ shouldEvaluateToSameObject("entries[2].target", target);
}
+ document.scrollingElement.scrollTop = 240;
+ requestAnimationFrame(step4);
+}
- function step4() {
- setTimeout(function() {
- shouldBeEqualToNumber("entries.length", 4);
- shouldBeEqualToNumber("entries[3].boundingClientRect.left", 8);
- shouldBeEqualToNumber("entries[3].boundingClientRect.right", 108);
- shouldBeEqualToNumber("entries[3].boundingClientRect.top", 468);
- shouldBeEqualToNumber("entries[3].boundingClientRect.bottom", 568);
- shouldBeEqualToNumber("entries[3].intersectionRect.left", 8);
- shouldBeEqualToNumber("entries[3].intersectionRect.right", 108);
- shouldBeEqualToNumber("entries[3].intersectionRect.top", 468);
- shouldBeEqualToNumber("entries[3].intersectionRect.bottom", 568);
- shouldBeEqualToNumber("entries[3].rootBounds.left", 0);
- shouldBeEqualToNumber("entries[3].rootBounds.right", 785);
- shouldBeEqualToNumber("entries[3].rootBounds.top", 0);
- shouldBeEqualToNumber("entries[3].rootBounds.bottom", 600);
- shouldEvaluateToSameObject("entries[3].target", target);
- document.scrollingElement.scrollTop = 740;
- requestAnimationFrame(step5);
- });
+function step4() {
+ entries = entries.concat(observer.takeRecords());
+ shouldBeEqualToNumber("entries.length", 4);
+ if (entries.length > 3) {
+ shouldBeEqualToNumber("entries[3].boundingClientRect.left", 8);
+ shouldBeEqualToNumber("entries[3].boundingClientRect.right", 108);
+ shouldBeEqualToNumber("entries[3].boundingClientRect.top", 468);
+ shouldBeEqualToNumber("entries[3].boundingClientRect.bottom", 568);
+ shouldBeEqualToNumber("entries[3].intersectionRect.left", 8);
+ shouldBeEqualToNumber("entries[3].intersectionRect.right", 108);
+ shouldBeEqualToNumber("entries[3].intersectionRect.top", 468);
+ shouldBeEqualToNumber("entries[3].intersectionRect.bottom", 568);
+ shouldBeEqualToNumber("entries[3].rootBounds.left", 0);
+ shouldBeEqualToNumber("entries[3].rootBounds.right", 785);
+ shouldBeEqualToNumber("entries[3].rootBounds.top", 0);
+ shouldBeEqualToNumber("entries[3].rootBounds.bottom", 600);
+ shouldEvaluateToSameObject("entries[3].target", target);
}
+ document.scrollingElement.scrollTop = 740;
+ requestAnimationFrame(step5);
+}
- function step5() {
- setTimeout(function() {
- shouldBeEqualToNumber("entries.length", 5);
- shouldBeEqualToNumber("entries[4].boundingClientRect.left", 8);
- shouldBeEqualToNumber("entries[4].boundingClientRect.right", 108);
- shouldBeEqualToNumber("entries[4].boundingClientRect.top", -32);
- shouldBeEqualToNumber("entries[4].boundingClientRect.bottom", 68);
- shouldBeEqualToNumber("entries[4].intersectionRect.left", 8);
- shouldBeEqualToNumber("entries[4].intersectionRect.right", 108);
- shouldBeEqualToNumber("entries[4].intersectionRect.top", 0);
- shouldBeEqualToNumber("entries[4].intersectionRect.bottom", 68);
- shouldBeEqualToNumber("entries[4].rootBounds.left", 0);
- shouldBeEqualToNumber("entries[4].rootBounds.right", 785);
- shouldBeEqualToNumber("entries[4].rootBounds.top", 0);
- shouldBeEqualToNumber("entries[4].rootBounds.bottom", 600);
- shouldEvaluateToSameObject("entries[4].target", target);
- document.scrollingElement.scrollTop = 760;
- requestAnimationFrame(step6);
- });
+function step5() {
+ entries = entries.concat(observer.takeRecords());
+ shouldBeEqualToNumber("entries.length", 5);
+ if (entries.length > 4) {
+ shouldBeEqualToNumber("entries[4].boundingClientRect.left", 8);
+ shouldBeEqualToNumber("entries[4].boundingClientRect.right", 108);
+ shouldBeEqualToNumber("entries[4].boundingClientRect.top", -32);
+ shouldBeEqualToNumber("entries[4].boundingClientRect.bottom", 68);
+ shouldBeEqualToNumber("entries[4].intersectionRect.left", 8);
+ shouldBeEqualToNumber("entries[4].intersectionRect.right", 108);
+ shouldBeEqualToNumber("entries[4].intersectionRect.top", 0);
+ shouldBeEqualToNumber("entries[4].intersectionRect.bottom", 68);
+ shouldBeEqualToNumber("entries[4].rootBounds.left", 0);
+ shouldBeEqualToNumber("entries[4].rootBounds.right", 785);
+ shouldBeEqualToNumber("entries[4].rootBounds.top", 0);
+ shouldBeEqualToNumber("entries[4].rootBounds.bottom", 600);
+ shouldEvaluateToSameObject("entries[4].target", target);
}
+ document.scrollingElement.scrollTop = 760;
+ requestAnimationFrame(step6);
+}
- function step6() {
- setTimeout(function() {
- shouldBeEqualToNumber("entries.length", 6);
- shouldBeEqualToNumber("entries[5].boundingClientRect.left", 8);
- shouldBeEqualToNumber("entries[5].boundingClientRect.right", 108);
- shouldBeEqualToNumber("entries[5].boundingClientRect.top", -52);
- shouldBeEqualToNumber("entries[5].boundingClientRect.bottom", 48);
- shouldBeEqualToNumber("entries[5].intersectionRect.left", 8);
- shouldBeEqualToNumber("entries[5].intersectionRect.right", 108);
- shouldBeEqualToNumber("entries[5].intersectionRect.top", 0);
- shouldBeEqualToNumber("entries[5].intersectionRect.bottom", 48);
- shouldBeEqualToNumber("entries[5].rootBounds.left", 0);
- shouldBeEqualToNumber("entries[5].rootBounds.right", 785);
- shouldBeEqualToNumber("entries[5].rootBounds.top", 0);
- shouldBeEqualToNumber("entries[5].rootBounds.bottom", 600);
- shouldEvaluateToSameObject("entries[5].target", target);
- document.scrollingElement.scrollTop = 800;
- requestAnimationFrame(step7);
- });
+function step6() {
+ entries = entries.concat(observer.takeRecords());
+ shouldBeEqualToNumber("entries.length", 6);
+ if (entries.length > 5) {
+ shouldBeEqualToNumber("entries[5].boundingClientRect.left", 8);
+ shouldBeEqualToNumber("entries[5].boundingClientRect.right", 108);
+ shouldBeEqualToNumber("entries[5].boundingClientRect.top", -52);
+ shouldBeEqualToNumber("entries[5].boundingClientRect.bottom", 48);
+ shouldBeEqualToNumber("entries[5].intersectionRect.left", 8);
+ shouldBeEqualToNumber("entries[5].intersectionRect.right", 108);
+ shouldBeEqualToNumber("entries[5].intersectionRect.top", 0);
+ shouldBeEqualToNumber("entries[5].intersectionRect.bottom", 48);
+ shouldBeEqualToNumber("entries[5].rootBounds.left", 0);
+ shouldBeEqualToNumber("entries[5].rootBounds.right", 785);
+ shouldBeEqualToNumber("entries[5].rootBounds.top", 0);
+ shouldBeEqualToNumber("entries[5].rootBounds.bottom", 600);
+ shouldEvaluateToSameObject("entries[5].target", target);
}
+ document.scrollingElement.scrollTop = 800;
+ requestAnimationFrame(step7);
+}
- function step7() {
- setTimeout(function() {
- shouldBeEqualToNumber("entries.length", 7);
- shouldBeEqualToNumber("entries[6].boundingClientRect.left", 8);
- shouldBeEqualToNumber("entries[6].boundingClientRect.right", 108);
- shouldBeEqualToNumber("entries[6].boundingClientRect.top", -92);
- shouldBeEqualToNumber("entries[6].boundingClientRect.bottom", 8);
- shouldBeEqualToNumber("entries[6].intersectionRect.left", 8);
- shouldBeEqualToNumber("entries[6].intersectionRect.right", 108);
- shouldBeEqualToNumber("entries[6].intersectionRect.top", 0);
- shouldBeEqualToNumber("entries[6].intersectionRect.bottom", 8);
- shouldBeEqualToNumber("entries[6].rootBounds.left", 0);
- shouldBeEqualToNumber("entries[6].rootBounds.right", 785);
- shouldBeEqualToNumber("entries[6].rootBounds.top", 0);
- shouldBeEqualToNumber("entries[6].rootBounds.bottom", 600);
- shouldEvaluateToSameObject("entries[6].target", target);
- document.scrollingElement.scrollTop = 820;
- requestAnimationFrame(step8);
- });
+function step7() {
+ entries = entries.concat(observer.takeRecords());
+ shouldBeEqualToNumber("entries.length", 7);
+ if (entries.length > 6) {
+ shouldBeEqualToNumber("entries[6].boundingClientRect.left", 8);
+ shouldBeEqualToNumber("entries[6].boundingClientRect.right", 108);
+ shouldBeEqualToNumber("entries[6].boundingClientRect.top", -92);
+ shouldBeEqualToNumber("entries[6].boundingClientRect.bottom", 8);
+ shouldBeEqualToNumber("entries[6].intersectionRect.left", 8);
+ shouldBeEqualToNumber("entries[6].intersectionRect.right", 108);
+ shouldBeEqualToNumber("entries[6].intersectionRect.top", 0);
+ shouldBeEqualToNumber("entries[6].intersectionRect.bottom", 8);
+ shouldBeEqualToNumber("entries[6].rootBounds.left", 0);
+ shouldBeEqualToNumber("entries[6].rootBounds.right", 785);
+ shouldBeEqualToNumber("entries[6].rootBounds.top", 0);
+ shouldBeEqualToNumber("entries[6].rootBounds.bottom", 600);
+ shouldEvaluateToSameObject("entries[6].target", target);
}
+ document.scrollingElement.scrollTop = 820;
+ requestAnimationFrame(step8);
+}
- function step8() {
- setTimeout(function() {
- shouldBeEqualToNumber("entries.length", 8);
- shouldBeEqualToNumber("entries[7].boundingClientRect.left", 8);
- shouldBeEqualToNumber("entries[7].boundingClientRect.right", 108);
- shouldBeEqualToNumber("entries[7].boundingClientRect.top", -112);
- shouldBeEqualToNumber("entries[7].boundingClientRect.bottom", -12);
- shouldBeEqualToNumber("entries[7].intersectionRect.left", 0);
- shouldBeEqualToNumber("entries[7].intersectionRect.right", 0);
- shouldBeEqualToNumber("entries[7].intersectionRect.top", 0);
- shouldBeEqualToNumber("entries[7].intersectionRect.bottom", 0);
- shouldBeEqualToNumber("entries[7].rootBounds.left", 0);
- shouldBeEqualToNumber("entries[7].rootBounds.right", 785);
- shouldBeEqualToNumber("entries[7].rootBounds.top", 0);
- shouldBeEqualToNumber("entries[7].rootBounds.bottom", 600);
- shouldEvaluateToSameObject("entries[7].target", target);
- finishJSTest();
- document.scrollingElement.scrollTop = 0;
- });
+function step8() {
+ entries = entries.concat(observer.takeRecords());
+ shouldBeEqualToNumber("entries.length", 8);
+ if (entries.length > 7) {
+ shouldBeEqualToNumber("entries[7].boundingClientRect.left", 8);
+ shouldBeEqualToNumber("entries[7].boundingClientRect.right", 108);
+ shouldBeEqualToNumber("entries[7].boundingClientRect.top", -112);
+ shouldBeEqualToNumber("entries[7].boundingClientRect.bottom", -12);
+ shouldBeEqualToNumber("entries[7].intersectionRect.left", 0);
+ shouldBeEqualToNumber("entries[7].intersectionRect.right", 0);
+ shouldBeEqualToNumber("entries[7].intersectionRect.top", 0);
+ shouldBeEqualToNumber("entries[7].intersectionRect.bottom", 0);
+ shouldBeEqualToNumber("entries[7].rootBounds.left", 0);
+ shouldBeEqualToNumber("entries[7].rootBounds.right", 785);
+ shouldBeEqualToNumber("entries[7].rootBounds.top", 0);
+ shouldBeEqualToNumber("entries[7].rootBounds.bottom", 600);
+ shouldEvaluateToSameObject("entries[7].target", target);
}
-
- step0();
+ finishJSTest();
+ document.scrollingElement.scrollTop = 0;
+}
</script>
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